SEPTENTRIO AsteRx-m Series, Руководство по оборудованию

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AsteRx-m UAS
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4.1 Connectors
ID Type Description Usage Example
J1 30-pin DF40C Connector to the AsteRx-m board
J2 Micro B USB USB interface to AsteRx-m
Connect to laptop or PC to power the board
and control the AsteRx-m.
J3 DF13-6P-1.25DSA COM1 TTL UART from AsteRx-m.
Pin#1 is a 5V power input Connect to the GPS-port of a Pixhawk
(compatible with standard Pixhawk cables)
J4 DF13-6P-1.25DSA COM2 TTL UART from AsteRx-m.
J5 DF13-4P-1.25DSA COM3 TTL UART from AsteRx-m. Default
TTL, but RS232 possible via solder jumper.
J6 .1" RA Header 1x3 Pin#2 is connected to ground for 30ms
starting at the rising edge of the PPS pulse
from the AsteRx-m. Otherwise it is floating. This feature can be used to control a camera
trigger from the PPS output signal of the
AsteRx-m.
J7 .1" RA Header 1x2 3.3V-LVTTL event input. Connects to the
EVENT pin of the AsteRx-m receiver
through an inverter. A high-to-low
transition at J7 connector level corresponds
to a low-to-high transition at AsteRx-m level
and vice versa. This header can be connected to the flash
port of a camera (e.g. via Hot Shoe or
Prontor-Compur interface), to allow the
AsteRx-m to timetag the pictures and provide
the position at the exact time the picture was
taken.
J8 DF13-4P-1.25DSA Reserved
J10 .1" RA Header 1x2 6-30V DC supply Can be directly connected to a battery pack.
J11 .1" RA Header 1x3 5V DC out (max 2A)
J12 DM3AT-SF-PEJM5 µSD-card socket for GNSS measurement
logging
J13 .1" V Header 1x2 Connects to the Button pin of AsteRx-m Push-button to start/stop logging and
mount/unmount the SD-card. The interface
board contains a deboucing circuit. See
section 2.7.
Refer to the board schematics in section 4.5 and to the picture on page 16 for the pinout
of each connector.
4.2 Power Supply Options
When an USB cable is connected, the interface board is powered from the computer
through the USB connector (J2).
Alternatively, the power can be applied from either:
•
Pin#1 of the COM1 connector (J3, or optionally with solder jumper J4 and
J5)
•
An external 6-30V DC supply (J10).
Power can be applied to more than one connector at the same time. On-board diodes
prevent short circuits (see schematics in section 4.5).
The interface card provides the 3V3 supply to the AsteRx-m receiver: there is no need for
a separate 3V3 supply for the receiver.
The interface card provides a 5V DC voltage to the VANT pin of the AsteRx-m.